Apenas um tiro no escuro, mas IMHO sua partição de swap não está danificado em tudo. Já vi discrepâncias entre fdisk e gparted e, é triste dizer, mas o fdisk está quase sempre certo.
Experimente:
#> cat /proc/meminfo | grep -i swap
SwapCached: 10632 kB
SwapTotal: 2094076 kB
SwapFree: 2053324 kB
você deve ver que o seu espaço de swap está realmente em uso (ou pelo menos eu espero que sim).
A explicação para essa partição "% não legível" /dev/mapper/cryptswap1 é que cryptswap1 é na verdade um espaço de troca criptografado mapeado, portanto, não há problema em ninguém entender o que está lá. Se você quiser desabilitá-lo, você pode olhar para este tópico: Como desabilitar o cryptswap?
Por último, mas não menos importante, o seu SMART status: à primeira vista (apenas observando a taxa de erro de leitura e a taxa de erro de busca), eu teria dito que sua unidade estava prestes a derreter. Mas, não, tudo bem, eu tenho uma unidade cujo SMART diz exatamente o mesmo. Vou postar a saída completa apenas para referência (tanto para mim quanto para os outros) para futuras visitas.
#> sudo smartctl --all /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-24-generic] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 7200.12
Device Model: ST3250318AS
Serial Number: 9VM2R3AN
LU WWN Device Id: 5 000c50 015aa8d47
Firmware Version: CC35
User Capacity: 250,059,350,016 bytes [250 GB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: 8
ATA Standard is: ATA-8-ACS revision 4
Local Time is: Sun May 27 18:03:03 2012 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 617) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 52) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x103f) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 118 099 006 Pre-fail Always - 196559365
3 Spin_Up_Time 0x0003 097 097 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 320
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 067 060 030 Pre-fail Always - 6277671
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 517
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 158
183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0
184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
188 Command_Timeout 0x0032 100 099 000 Old_age Always - 41
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 065 065 045 Old_age Always - 35 (Min/Max 21/35)
194 Temperature_Celsius 0x0022 035 040 000 Old_age Always - 35 (0 12 0 0)
195 Hardware_ECC_Recovered 0x001a 052 045 000 Old_age Always - 196559365
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 72748156060552
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 968998393
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 939693204
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
E eu tenho outra unidade que parece mais "normal":
#> sudo smartctl --all /dev/sdc
smartctl 5.42 2011-10-20 r3458 [x86_64-linux-3.0.6-gentoo-goomba-test-3]
(local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green (Adv. Format)
Device Model: WDC WD20EARS-00MVWB0
Serial Number: WD-WCAZA2437330
LU WWN Device Id: 5 0014ee 205473c89
Firmware Version: 51.0AB51
User Capacity: 2,000,398,934,016 bytes [2,00 TB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: 8
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Sun May 27 18:16:09 2012 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x84) Offline data collection activity
was suspended by an interrupting
command from host.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine
completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (37500) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off
support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 255) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x3035) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED
WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 253 253 021 Pre-fail Always - 1233
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 390
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 094 094 000 Old_age Always - 4988
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 388
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 33
193 Load_Cycle_Count 0x0032 135 135 000 Old_age Always - 197801
194 Temperature_Celsius 0x0022 119 109 000 Old_age Always - 31
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 199 000 Old_age Always - 451
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
E outro com algum erro "real", que no entanto ainda está vivo após vários meses de pequenas reclamações:
#> sudo smartctl --all /dev/sda
smartctl 5.42 2011-10-20 r3458 [x86_64-linux-3.0.6-gentoo-goomba-test-3] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Model Family: Seagate Maxtor DiamondMax 20
Device Model: MAXTOR STM3160211AS
Serial Number: 6PT56QN7
Firmware Version: 3.AAE
User Capacity: 160,041,885,696 bytes [160 GB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: 7
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Sun May 27 18:33:59 2012 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 430) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 54) minutes.
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 102 087 006 Pre-fail Always - 4542948
3 Spin_Up_Time 0x0003 095 095 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 1011
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 11
7 Seek_Error_Rate 0x000f 089 060 030 Pre-fail Always - 846828717
9 Power_On_Hours 0x0032 086 086 000 Old_age Always - 13126
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 1019
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 064 052 045 Old_age Always - 36 (Min/Max 22/37)
194 Temperature_Celsius 0x0022 036 048 000 Old_age Always - 36 (0 14 0 0 0)
195 Hardware_ECC_Recovered 0x001a 050 046 000 Old_age Always - 11583613
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 200 169 000 Old_age Always - 48
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age Offline - 0
202 Data_Address_Mark_Errs 0x0032 100 253 000 Old_age Always - 0
SMART Error Log Version: 1
ATA Error Count: 204 (device log contains only the most recent five errors)
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 204 occurred at disk power-on lifetime: 5852 hours (243 days + 20 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 2d 72 00 00 e0 Error: ICRC, ABRT 45 sectors at LBA = 0x00000072 = 114
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 00 3e 61 00 00 e0 00 00:01:52.203 READ DMA
27 00 00 00 00 00 e0 00 00:01:52.133 READ NATIVE MAX ADDRESS EXT
ec 00 00 00 00 00 a0 00 00:01:52.125 IDENTIFY DEVICE
ef 03 42 00 00 00 a0 00 00:01:52.104 SET FEATURES [Set transfer mode]
27 00 00 00 00 00 e0 00 00:01:46.941 READ NATIVE MAX ADDRESS EXT
Error 203 occurred at disk power-on lifetime: 5852 hours (243 days + 20 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 2d 72 00 00 e0 Error: ICRC, ABRT 45 sectors at LBA = 0x00000072 = 114
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 00 3e 61 00 00 e0 00 00:01:45.519 READ DMA
c8 00 02 5f 00 00 e0 00 00:01:45.511 READ DMA
27 00 00 00 00 00 e0 00 00:01:45.503 READ NATIVE MAX ADDRESS EXT
ec 00 00 00 00 00 a0 00 00:01:45.431 IDENTIFY DEVICE
ef 03 42 00 00 00 a0 00 00:01:45.423 SET FEATURES [Set transfer mode]
Error 202 occurred at disk power-on lifetime: 5852 hours (243 days + 20 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 60 00 00 e0 Error: ICRC, ABRT at LBA = 0x00000060 = 96
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 00 02 5f 00 00 e0 00 00:01:45.519 READ DMA
27 00 00 00 00 00 e0 00 00:01:45.511 READ NATIVE MAX ADDRESS EXT
ec 00 00 00 00 00 a0 00 00:01:45.503 IDENTIFY DEVICE
ef 03 42 00 00 00 a0 00 00:01:45.431 SET FEATURES [Set transfer mode]
27 00 00 00 00 00 e0 00 00:01:45.423 READ NATIVE MAX ADDRESS EXT
Error 201 occurred at disk power-on lifetime: 5852 hours (243 days + 20 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 60 00 00 e0 Error: ICRC, ABRT at LBA = 0x00000060 = 96
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 00 02 5f 00 00 e0 00 00:01:44.035 READ DMA
25 00 08 af 8a a1 e0 00 00:01:43.980 READ DMA EXT
27 00 00 00 00 00 e0 00 00:01:43.972 READ NATIVE MAX ADDRESS EXT
ec 00 00 00 00 00 a0 00 00:01:43.968 IDENTIFY DEVICE
ef 03 42 00 00 00 a0 00 00:01:43.904 SET FEATURES [Set transfer mode]
Error 200 occurred at disk power-on lifetime: 5852 hours (243 days + 20 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 b6 8a a1 e0 Error: ICRC, ABRT at LBA = 0x00a18ab6 = 10586806
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
25 00 08 af 8a a1 e0 00 00:01:44.035 READ DMA EXT
25 00 06 41 8a a1 e0 00 00:01:43.980 READ DMA EXT
27 00 00 00 00 00 e0 00 00:01:43.972 READ NATIVE MAX ADDRESS EXT
ec 00 00 00 00 00 a0 00 00:01:43.968 IDENTIFY DEVICE
ef 03 42 00 00 00 a0 00 00:01:43.904 SET FEATURES [Set transfer mode]
SMART Self-test log structure revision number 1
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
Para o que diz respeito ao benchmark de velocidade de leitura, acho que uma diminuição de velocidade ao longo do tempo é normal. Eu suspeito que mecanismos de cache fazem o disco parecer mais rápido na fase inicial do teste e mais lento no final. No entanto, vejo que a sua "pior" velocidade de leitura é de cerca de 80MB / s, muito acima da velocidade de leitura "melhor média" (cerca de 60MB / s), pelo que não me preocuparia com este aspecto.